JPH0760024B2 - Refrigeration equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a refrigerating apparatus using a mixed refrigerant.

2. Description of the Related Art A refrigeration system using a mixed refrigerant can perform capacity control and performance improvement by varying the composition ratio of the refrigerant circulating inside the cycle.

Conventionally, a rectification separation system utilizing a difference in boiling point has been used as a system for varying the composition of a refrigerant circulating in a cycle of a refrigeration system using a non-azeotropic mixed refrigerant (for example, JP-A-62- 280556 publication).

An example of the refrigerating apparatus using the rectification separation system will be described below with reference to FIG.

FIG. 11 is a refrigeration cycle diagram showing a conventional example.

In FIG. 11, 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger, 4 is a main circuit decompressor, and 5 is an indoor heat exchanger, which are annularly connected to form a main circuit. The heater 7 is provided both in the middle of the outdoor heat exchanger 3 and the decompressor 4 and at the bottom of the rectification column 6.
Through the check valve 8 and connected via a check valve 8 and a first pressure reducer 9 is provided in parallel with the heater 7 and the check valve 8;
And the bottom of the rectification tower 6 and the bottom of the refrigerant reservoir 10 are connected via an electromagnetic on-off valve 11, and also between the indoor heat exchanger 5 and the decompressor 4 of the main circuit and the rectification tower 6. The bottom part is connected to the bottom part through the heater 7 via the check valve 12, and the decompressor 13 is provided in parallel with the heater 7 and the check valve 12, and the top part of the rectification column 6 and the top part of the refrigerant reservoir 10 are provided. Through the cooler 14 to connect the top of the rectification column 6 and the bottom of the refrigerant reservoir 10. As the refrigerant in this conventional example, a non-azeotropic mixed refrigerant composed of two kinds of refrigerants having different boiling points is used.

The operation of the refrigerating apparatus configured as described above will be described below.

During heating operation, when the indoor temperature detected by the indoor temperature sensor is compared with the set temperature and is higher than the set temperature, the refrigerant flows as shown by the solid line arrow in FIG. 11, and the solenoid on-off valve 11 is open at this time. The composition of the refrigerant in the refrigerant reservoir 10 is the same as that of the main circuit, and high capacity is obtained in the state where the high boiling point component and the low boiling point component are mixed.

On the other hand, when the room temperature rises and becomes higher than the set temperature, the electromagnetic on-off valve 11 closes and the refrigerant flows as shown by the dotted arrow.
A part of the supercooled refrigerant that has exited the indoor heat exchanger 5 enters the heater 7 and is heated by the discharge gas to generate a gas component, which then enters the rectification column 6. The gas component of the refrigerant that entered the rectification tower 6 rises in the tower and enters the cooler 14, where it is cooled and liquefied by the suction gas and guided to the refrigerant reservoir 10, a part of which is the top of the rectification tower. It makes a gas-liquid contact with the gas components that are refluxed in the column and rising in the tower for mass transfer and heat exchange. By repeating this cycle, the refrigerant in the refrigerant reservoir 10 has a large amount of low-boiling components, and the composition of the refrigerant flowing through the main circuit is in a state of having a large amount of high-boiling components, so that low capacity is obtained.

Problems to be Solved by the Invention However, the above-described configuration has the following problems.

First, in the conventional example, the case where the low boiling point component ratio of the main circuit is reduced by storing the low boiling point refrigerant has been described. In order to store the boiling point refrigerant as well and vary the composition ratio of the refrigerant in the main circuit over a wide range, a reservoir and a heater are required under the separator, which complicates the configuration. When the number of refrigerants is three or more, a separator, a heater, and a reservoir are required, which further complicates the configuration.

Secondly, in the rectification separation, the rectification tower must be vertical, and the height of the reservoir and the rectification tower is limited due to installation.
Since it utilizes the difference in boiling points, it has problems peculiar to rectification separation, such as azeotropic mixed refrigerants having similar boiling points cannot be used.

In view of the above problems, the present invention provides a refrigerant mixing ratio variable device and an indoor temperature sensor, and accurately detects a load based on a difference between an indoor temperature and an indoor set temperature to enable efficient and stable capacity control in cooling and heating operations. A refrigeration system is provided.

Means for Solving the Problems In order to solve the above problems, according to the present invention, a plurality of types of refrigerants are enclosed in a main circuit in which a compressor, a condenser, a main expansion device, and an evaporator each having a variable frequency device are annularly connected. In the refrigeration cycle described above, a plurality of refrigerant separators having a functional film that facilitates passage of a specific type of refrigerant are connected, and the refrigerant that exits the refrigerant separators on the permeation side and the non-permeation side of the functional film is arbitrarily stored. A reservoir that can be connected to the main circuit via a solenoid on-off valve and a pressure reducing device or a variable pressure reducing device on the permeate side and the non-permeate side, respectively, constitutes a refrigerant composition ratio variable cycle, and temperature detecting means for detecting the room temperature. First comparison means for comparing the detected temperature by the temperature detection means and the set temperature obtained by adding a certain value to the indoor set temperature, a first comparison means, a timer for measuring the elapsed time from the start of operation, and the measurement of the timer A second comparison means for comparing a value with a set time, and a refrigerant other than the lowest boiling point component when the temperature is lower than the set temperature by the first comparison means and smaller than the set time by the second comparison means. To a first output mode for switching so as to be stored in the reservoir, and when the temperature is lower than the set temperature by the first comparison means and longer than the set time by the second comparison means, the highest boiling point In the second output mode in which the component refrigerant is switched to be stored in the reservoir, and when the temperature is higher than the set temperature by the first comparing means, the component refrigerant having the lowest boiling point is stored in the reservoir. It is provided with a transition means for transitioning to a third output mode for switching to the above and an output means for outputting an electric signal to the electromagnetic on-off valve or the variable pressure reducing device according to the output mode.

Further, the present invention, when the difference between the room temperature by the temperature detection means and the set temperature obtained by adding a certain value to the room set temperature is an arbitrary value or more, the refrigerant other than the highest boiling point component is stored in the reservoir. It is provided with a transition means for transitioning to a fourth output mode for switching and an output means for outputting an electric signal to the electromagnetic on-off valve or the variable pressure reducing device according to the output mode.

A timer for measuring the passage of time from the start of operation, a first comparing means for comparing the measured value of this timer with a set time, and a frequency detecting means for detecting the operating frequency of the compressor,
Second comparing means for comparing the detected frequency of the frequency detecting means with the set frequency, and a second comparing means for comparing the set frequency with the second comparing means, and a second comparing means for comparing the set frequency with the set time. When the value is small, the first comparing mode is set in the first output mode in which the refrigerant other than the component with the lowest boiling point is switched to be stored in the reservoir, and when the frequency is higher than the set frequency by the second comparing means. When the time is longer than the set time, the second output mode is switched so that the refrigerant having the highest boiling point is stored in the reservoir, and the second output mode is set.
If the frequency is smaller than the set frequency by the comparison means of the above, the switching means is switched to the third output mode in which the refrigerant having the lowest boiling point component is stored in the reservoir, and the electromagnetic on-off valve or the variable pressure reducing valve is selected depending on the output mode. The device is provided with output means for outputting an electric signal.

Effect The present invention, by the above configuration, can separate refrigerant not only for non-azeotropic mixed refrigerants but also for azeotropic mixed refrigerants, accurately grasp the load in both cooling and heating, and depending on the required load, high boiling point refrigerant component, intermediate boiling point refrigerant component or low boiling point refrigerant component. By separating the boiling point refrigerant components and varying the refrigerant mixing ratio, a wide range of highly efficient capacity control operation is possible, while eliminating the restrictions on the installation and installation of the components of the separation circuit, and reducing the size and simplification of the separation circuit. Can be planned.

Example An example of a refrigeration cycle using the functional film will be described below with reference to FIG.

FIG. 1 shows an embodiment in which a non-azeotropic mixed refrigerant of R-22, R-12 and R-13B1 is used as the refrigerant, and FIG. 2 shows a refrigerant separator using a functional film (hereinafter referred to as “separator”). (Referred to as a container).

In FIG. 1, reference numeral 21 is a compressor, 22 is a condenser, 23 is a main expansion device, and 24 is an evaporator, which are sequentially connected in an annular shape to form a main circuit. The inlet pipe 105 of the first separator 101, which is provided with the functional film 103 that allows the refrigerant R-12 component to easily pass therethrough and hardly allows other components to pass therethrough, is connected to the high pressure side in front of the main expansion device 23, and the outlet pipe 106. Is connected to the inlet of a second separator 101 'equipped with a functional film 103' which allows the R-22 component to pass easily and other components to pass less, and the outlet pipe 106 'has a reservoir 25 and a first throttle. It is connected via a device 26 to the low pressure side after the main throttle device 23. On the other hand, inside the separator, as shown in FIG. 2, for example, in the separator 101 ′, the separator main body 102 is partitioned into a high pressure side space a and a low pressure side space b by a mesh-shaped holder 104, and a high pressure side of the holder 104 is filled with dimethyl. The functional film 103 using a thin film of silicon is installed. Further, the permeated refrigerant outlet pipes 107, 107 'of the first separator 101, the second separator 101' are connected to the main throttle device via the reservoirs 27, 28, the third throttle device 29, and the fourth throttle device 30, respectively. It is connected to the low voltage side after 23. Further, the permeated refrigerant outlet pipes 107, 107 'are connected to the coolers 31, 32 by heat exchange.

Explaining the relationship between the block circuit shown in FIG. 3 and the control circuit shown in FIG. 4, the indoor temperature sensor 33 shown in FIG. 4 corresponds to the indoor temperature detecting means shown in FIG. The comparator 34 shown corresponds to the first comparing means in FIG. 3, and the microcomputer 35 in FIG. 4 corresponds to the second comparing means and shifting means for comparing the timer measured value with the set time in FIG. The output circuit 36 shown in FIG. 4 corresponds to the output means shown in FIG.

Regarding the operation of the control circuit configured as described above,
It will be described with reference to FIGS.

During heating operation, a timer that detects the indoor temperature with the indoor temperature sensor 33, compares it with the set temperature that is a certain value added to the indoor set temperature with the comparator 34, is lower than the set temperature, and measures the elapsed time from the start of the heating operation. When the value of is less than the set time, the valve openings of the second expansion device 29 and the third expansion device 30 are reduced so that R-12, which easily penetrates the functional film 103, is cooled by the cooler 31. Liquid refrigerant reservoir 27
Stored in. On the other hand, R-22, which is difficult to pass through the functional film 103,
R-13B1 exits the outlet pipe 106 and enters the second separator 101 '. The R-22 that easily permeates the functional film 103 'is cooled by the cooler 32 and stored in the reservoir 28 as a liquid refrigerant. On the other hand, R-13B1 which hardly permeates the functional film 103 'exits the outlet pipe 1O6' and is sent to the low pressure side after the main expansion device 23 via the reservoir 25 and the first expansion device 26. Therefore, the R-12 and R-22 ratios of the main circuit are lowered and the R-13B1 ratio is increased to obtain the highest performance.

On the other hand, when the detected temperature is lower than the set temperature and the value of the timer that measures the elapsed time from the start of the heating operation is larger than the set time, the valve opening of the second expansion device 29 is reduced to function. The R-12 that easily permeates the membrane 103 is cooled by the cooler 31 and stored in the reservoir 27 as a liquid refrigerant.
On the other hand, R22 and R-13B1 which are difficult to penetrate the functional film 103 are outlet pipes.
Exit 106 and enter second separator 101 '. The R-22, which easily permeates the functional film 103 ', is cooled by the cooler 32 and enters the reservoir 28 as a liquid refrigerant, but is hardly stored and is decompressed by the third throttle device 30 to be the main throttle device 23. Sent to the low pressure side after. On the other hand, the R-13B1 which is less likely to pass through the function 103 'exits the outlet pipe 106' and is sent to the low pressure side after the main expansion device 23 via the reservoir 25 and the first expansion device 26. Therefore, only the R-12 ratio of the main circuit is reduced.

Next, when the room temperature rises and becomes higher than the set temperature, the valve opening degree of the first expansion device 26 is reduced. So, functional film
R-12, which easily passes through 103, is cooled by the cooler 31 and enters the reservoir 27 as a liquid refrigerant, but is hardly retained and the R-12
The pressure is reduced by the expansion device 29 and is sent to the low pressure side after the main expansion device 23. On the other hand, R22, R that is difficult to penetrate through the functional film 103
-13B1 exits the outlet pipe 106 and enters the second separator 101 '.
The R-22, which easily passes through the functional film 103 ', is decompressed by the second diaphragm device 29 in the same manner as the R-12, and the main diaphragm device 23.
Sent to the low pressure side after. On the other hand, R-13B1 which is difficult to permeate the functional film 103 'exits the outlet pipe 106' and is stored as a liquid refrigerant in the reservoir 25.
Stored in. Therefore, only the R-13B1 ratio of the main circuit decreases, the R-12 and R-22 ratios increase, and both the capacity and the power consumption decrease, and efficient capacity control can be performed. The same is true during the cooling operation.

As described above, according to the present embodiment, the indoor temperature sensor 33 is provided, and the ratio of the mixed refrigerant is changed by comparing the indoor temperature and the set temperature and comparing the elapsed time and the set time from the start of the operation. When the load is the largest and high capacity is required as at the start, the refrigerants of high boiling point component and intermediate boiling point component are separated and stored, and the refrigerant in the main circuit has a lot of low boiling point components and the highest capacity. When the load is high except when starting operation, only the high-boiling point refrigerant is separated and stored, and the main circuit refrigerant has a large amount of low-boiling point components and intermediate-boiling point components, and high performance can be obtained. When the load is small and low capacity is sufficient, the low boiling point components are separated and stored, and the refrigerant in the main circuit is in a state where there are many intermediate boiling point components and high boiling point components, and low capacity and low power consumption can be obtained, and Good ability control easy , Can be realized Te separation circuit downsized without constraints on the mounting of the components of the separation circuit and simplify.

Next, a second embodiment of the present invention will be described with reference to FIGS. 1, 4, and 6.

Here, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The indoor temperature sensor 33 corresponds to the indoor temperature detecting means shown in FIG. 6, and the comparator 34 shown in FIG. 4 corresponds to the first comparing means shown in FIG.

In the above configuration, for example, when a high temperature of 50 ° C. or higher is set during heating operation, the first expansion device 26 and the third expansion device 26
By reducing the valve opening of 30, the R-12, which is easily permeated through the functional film 103, is cooled by the cooler 31 and enters the reservoir 27 as a liquid refrigerant, but is hardly stored and the second throttle device is not stored.
The pressure is reduced by 29 and sent to the low pressure side after the main expansion device 23. On the other hand, R22 and R-13B1 which are less likely to permeate the functional membrane 103 exit the outlet pipe 106 and enter the second separator 101 '. Functional membrane 10
R-22, which easily passes through 3 ', is cooled by the cooler 32 and stored in the reservoir 28 as a liquid refrigerant. On the other hand, R-13B1 which hardly permeates the functional film 103 'exits the outlet pipe 106' and is stored in the reservoir 25 as a liquid refrigerant. Therefore, R-22 and R-13 of the main circuit
The B1 ratio decreases and the R-12 ratio increases, enabling high temperature operation. This also applies to the case of raising the temperature of hot water supply in hot water supply operation, for example.

As described above, according to the present embodiment, the indoor temperature by the indoor temperature sensor 33 is compared with the set temperature like a hot air blow, and when the difference is more than an arbitrary value, the low boiling point component and the intermediate temperature are set. The refrigerant of the boiling point component is separated and stored, and the refrigerant in the main circuit has a large amount of the high boiling point component, so that the highest temperature can be obtained.

Furthermore, referring to FIG. 1, FIG. 8 and FIG.
An example will be described.

Here, the same components as those in the previous embodiment are designated by the same reference numerals and the description thereof will be omitted.

The frequency detection device 37 shown in FIG. 8 corresponds to the frequency detection means shown in FIG. 9 and detects the operating frequency of the compressor.

In the above configuration, during the heating operation, the compressor operating frequency is detected by the frequency detection device 37 and is compared with the set frequency by the comparator 34 to be higher than the set frequency, and the value of the timer for measuring the elapsed time from the start of the heating operation. When the time is less than the set time, the valve openings of the second expansion device 29 and the third expansion device 30 are reduced, so that R-12, which easily penetrates the functional film 103, is cooled by the cooler 31 and the liquid refrigerant. In reservoir 27
Stored in. On the other hand, R22, R-
13B1 exits the outlet pipe 106 and enters the second separator 101 '. The R-22 that easily permeates the functional film 103 'is cooled by the cooler 32 and stored in the reservoir 28 as a liquid refrigerant. On the other hand, functional film 10
The R-13B1 which is less likely to pass through 3 ', exits the outlet pipe 106' and is sent to the low pressure side after the main expansion device 23 via the reservoir 25 and the first expansion device 26. Therefore, the R-12 and R-22 ratios of the main circuit are lowered and the R-13B1 ratio is increased to obtain the highest performance.

On the other hand, when the detected frequency is higher than the set frequency and the value of the timer that measures the elapsed time from the start of the heating operation is larger than the set time, the valve opening of the third expansion device 29 is reduced to The R-12 that easily permeates the membrane 103 is cooled by the cooler 31 and stored in the reservoir 27 as a liquid refrigerant. On the other hand, R22 and R-13B1 which are less likely to permeate the functional membrane 103 exit the outlet pipe 106 and enter the second separator 101 '. Functional film 103 ′
The R-22, which is easily permeated, is cooled by the cooler 32 and enters the reservoir 28 as a liquid refrigerant, but is hardly stored and is depressurized by the third throttling device 30 to a low pressure after the main throttling device 23. Sent to the side. On the other hand, R-13B is hard to penetrate through the functional film 103 '.
1 exits the outlet pipe 106 'and is sent to the low pressure side after the main expansion device 23 via the reservoir 25 and the first expansion device 26. Therefore,
Only the R-12 ratio of the main circuit is reduced.

Next, when the frequency decreases and becomes lower than the set frequency, the valve opening degree of the first expansion device 26 is reduced. So functional film 10
R-12, which easily passes through 3, is cooled by the cooler 31 and enters the reservoir 27 as a liquid refrigerant, but is hardly stored and is decompressed by the second expansion device 29 to a low pressure after the main expansion device 23. Sent to the side. On the other hand, R22, R-
13B1 exits the outlet pipe 106 and enters the second separator 101 '. The R-22, which easily passes through the functional film 103 ', is decompressed by the second diaphragm device 29 in the same manner as R-12 and sent to the low pressure side after the main diaphragm device 23. On the other hand, R-13B1 which hardly permeates the functional film 103 'exits the outlet pipe 106' and is stored in the reservoir 25 as a liquid refrigerant. Therefore, only the R-13B1 ratio of the main circuit decreases, the R-12 and R-22 ratios increase, and both the capacity and the power consumption decrease, and efficient capacity control can be performed. The same is true during the cooling operation.

As described above, according to the present embodiment, the frequency detection device 37 is provided, and the ratio of the mixed refrigerant is changed by comparing the compressor operating frequency and the set frequency and comparing the elapsed time from the start of operation and the set time. When the load is the largest and high capacity is required, such as at the start of operation, the refrigerants of high boiling point component and intermediate boiling point component are separated and stored, and the refrigerant in the main circuit has a lot of low boiling point components and has the highest capacity. When the load is high except when starting operation, the refrigerant in the main circuit, in which only the high-boiling point refrigerant is separated and stored, has a large amount of low-boiling point components and intermediate-boiling point components to obtain high capacity. In addition, when the load is small and low capacity is sufficient, low boiling point components are separated and stored, and the refrigerant in the main circuit is in a state where there are many intermediate boiling point components and high boiling point components, and low capacity and low power consumption can be obtained. Efficient capacity control Easy and can be realized by separate circuits which attained without size reduction and simplification constraints on the mounting components of the separation circuit. Further, when the present embodiment is applied to the separation type air conditioner, the control can be performed only outside the room, and there is no need to transmit signals inside and outside the room, and the control structure can be simplified.

EFFECTS OF THE INVENTION As described above, the present invention is a refrigeration cycle in which a plurality of types of refrigerants are sealed in a main circuit in which a compressor, a condenser, a main expansion device, and an evaporator that are equipped with a frequency variable device are annularly connected,
A plurality of refrigerant separators that have a functional film that facilitates the passage of a specific type of refrigerant are connected, and the refrigerant that exits the refrigerant separators on the permeate and non-permeate sides of the functional film passes through a reservoir that can arbitrarily store the refrigerant. Side and non-permeate side each connected to the main circuit via an electromagnetic on-off valve and a pressure reducing device or a variable pressure reducing device to form a refrigerant composition ratio variable cycle, and temperature detecting means for detecting the room temperature, and the temperature detecting means. The first comparison means for comparing the detected temperature and the set temperature obtained by adding a certain value to the indoor set temperature by the first comparing means, the timer for measuring the elapsed time from the start of operation, and the measured value of the timer for setting the set time. When the temperature is lower than the set temperature by the second comparing means to be compared with the first comparing means and is shorter than the set time by the second comparing means, the refrigerant other than the component with the lowest boiling point is stored in the reservoir. To be cut off In the first output mode to be changed, and when the temperature is lower than the set temperature by the first comparing means and longer than the set time by the second comparing means, the refrigerant having the highest boiling point is stored in the reservoir. To the second output mode for switching to the above, and to the third output mode for switching so that the refrigerant having the lowest boiling point component is stored in the reservoir when the temperature is higher than the set temperature by the first comparing means. By appropriately providing a transfer means and an output means for outputting an electric signal to the electromagnetic on-off valve or the variable pressure reducing device according to the output mode, both the cooling operation and the heating operation accurately grasp the load,
By separating or mixing high boiling point components or separating low boiling point components according to the required load and varying the mixing ratio of the refrigerant flowing in the main circuit, a wide and efficient capacity control operation can be easily performed and The effect is that it can be realized by a separation circuit that is compact and simple without any restrictions on mounting.

Further, when the difference between the room temperature by the temperature detection means and the set temperature obtained by adding a certain value to the room set temperature is equal to or more than an arbitrary value, the refrigerant other than the highest boiling point component is switched to be stored in the reservoir. 4 is provided with a transition means for transitioning to the output mode and an output means for outputting an electric signal to the electromagnetic on-off valve or the variable pressure reducing device according to the output mode, thereby separating the refrigerant other than the highest boiling point component as necessary. And then
High temperature operation can be realized by increasing the high boiling point component ratio in the main circuit.

Further, by providing a frequency detecting means for detecting the operating frequency of the compressor in place of the temperature detecting means, when used in a separation type air conditioner, control is only required on the indoor side and there is no need for signal transmission inside and outside the room. The effect that the control structure can be simplified is obtained.

[Brief description of drawings]

FIG. 1 is a refrigerant cycle diagram in an embodiment of the present invention, FIG.
FIG. 4 is a detailed sectional view of the separator, FIG. 3 is a block diagram showing a first embodiment, FIG. 4 is a control circuit diagram thereof, FIG. 5 is a flow chart diagram thereof, and FIG. 6 is a second embodiment. FIG. 7, FIG. 7 is the same flow chart, FIG. 8 is a block diagram showing the third embodiment, FIG. 9 is the same control circuit diagram, FIG. 10 is the same flow chart, and FIG. 11 is a conventional example. 2 is a refrigeration cycle diagram in FIG. 21 ... Compressor, 22 ... Condenser, 23 ... Main throttle device, 24 ...
… Evaporator, 25,27,28 …… Reservoir, 101,101 ′ …… Separator, 103,103 ′ …… Functional membrane, 26,29,30 …… Squeezing device, 33
...... Temperature sensor, 34 …… Comparator, 35 …… Microcomputer, 36 …… Output circuit, 37 …… Frequency detection device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Murozono 1006, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-63-238367 (JP, A)

Claims (3)

[Claims] 1. A permeation ratio of a specific type of refrigerant in a refrigeration cycle in which a plurality of types of refrigerant are enclosed in a main circuit in which a compressor, a condenser, a main expansion device, and an evaporator equipped with a frequency variable device are annularly connected. Is connected to a plurality of refrigerant separators having a functional film larger than the permeation ratio of other refrigerants, and permeates a reservoir that arbitrarily stores the refrigerant discharged from the refrigerant separators on the permeate side and the non-permeate side of the functional film. Side and non-permeate side, each of which is connected to the main circuit through an electromagnetic on-off valve and a pressure reducing device or a variable pressure reducing device to form a refrigerant composition ratio variable cycle, and temperature detecting means for detecting the indoor temperature, and this temperature detecting means. First comparing means for comparing the detected temperature by the means and the set temperature obtained by adding a certain value to the indoor set temperature, a first comparing means, a timer for measuring the elapsed time from the start of operation, and the measured value and set time of this timer Compare with When the temperature is less than the set temperature by the second comparing means and the first comparing means and is less than the set time by the second comparing means, the refrigerant other than the component with the lowest boiling point is stored in the reservoir. When the temperature is lower than the set temperature by the first comparing means and longer than the set time by the second comparing means, the refrigerant having the highest boiling point is stored in the reservoir. To the second output mode in which the refrigerant is switched so that the refrigerant having the lowest boiling point component is stored in the reservoir when the temperature is higher than the set temperature by the first comparing means. A refrigerating apparatus comprising a transfer means for transferring and an output means for outputting an electric signal to an electromagnetic on-off valve or a variable pressure reducing device according to the output mode. 2. A refrigerant other than the highest boiling point component is stored in the reservoir when the difference between the room temperature detected by the temperature detecting means and the set temperature obtained by adding a certain value to the room set temperature is equal to or more than an arbitrary value. 2. A transition means for transitioning to a fourth output mode for switching to the above, and an output means for outputting an electric signal to an electromagnetic on-off valve or a variable pressure reducing device according to the output mode.
The refrigeration system described. 3. A permeation ratio of a specific type of refrigerant in a refrigeration cycle in which a plurality of types of refrigerant are enclosed in a main circuit in which a compressor, a condenser, a main expansion device, and an evaporator equipped with a frequency variable device are annularly connected. Is connected to a plurality of refrigerant separators having a functional film larger than the permeation ratio of other refrigerants, and permeates a reservoir that arbitrarily stores the refrigerant discharged from the refrigerant separators on the permeate side and the non-permeate side of the functional film. Of the refrigerant composition ratio variable cycle by connecting to the main circuit through a solenoid on-off valve and a pressure reducing device or a variable pressure reducing device on each of the side and the non-permeable side, and a timer for measuring the elapsed time from the start of operation and this timer No. 1 comparing means for comparing the measured value with the set time, frequency detecting means for detecting the operating frequency of the compressor, and first comparing means for comparing the detected frequency of the frequency detecting means with the set frequency. 2's When the frequency is higher than the set frequency by the comparing means and the second comparing means and is shorter than the set time by the first comparing means, the refrigerant other than the lowest boiling point component is stored in the reservoir. In the first output mode, and when the frequency is higher than the set frequency by the second comparison means and longer than the set time by the first comparison means, the refrigerant having the highest boiling point is stored in the reservoir. To the second output mode for switching to the above, and to the third output mode for switching so that the refrigerant having the lowest boiling point component is stored in the reservoir when the frequency is smaller than the set frequency by the second comparing means. A refrigeration system comprising a transition means and an output means for outputting an electric signal to an electromagnetic on-off valve or a variable pressure reducing device according to the output mode.